I am writing to ___5_____you to make up the shortfall immediately and to ________ that such errors do not happen again.
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I am writing to ________you to make up the shortfall immediately and to ___6_____ that such errors do not happen again.
___7______, we may have to look elsewhere for shipment.
I look forward to ____8____ from you by return.Yours faithfully,Jack WaltersPurchasing Officer
网络营销的微观环境由( )构成
A. 企业
B. 供应商
C. 顾客
D. 技术